(2) Stack-dynamic: Storage bindings are created for variables when their declaration statements are elaborated

(2) Stack-dynamic: Storage bindings are created for variables when their declaration statements are elaborated.

(2) Stack-dynamic: Storage bindings are created for variables when their declaration statements are elaborated.

I.e. A declaration is elaborated when the executable code associated with it is executed)

e.g. local variables in C subprograms and Java

methods

• lifetime = while the subprogram is active
• Advantage: allows recursion; conserves storage
• Disadvantages:
• Overhead of allocation and deallocation
• Subprograms cannot be history sensitive
• Inefficient references (indirect addressing)

Categories of Variables by Lifetimes